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Tardigrade
Question
Chemistry
To a 4 L of 0.2 M solution of NaOH 2 L of 0.5 M NaOH are added. The molarity of resulting solution is
Q. To a
4
L
of
0.2
M
solution of
N
a
O
H
2
L
of
0.5
M
N
a
O
H
are added. The molarity of resulting solution is
251
187
Manipal
Manipal 2018
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A
0.9 M
B
0.3 M
C
1.8 M
D
0.18 M
Solution:
Total moles of
N
a
O
H
=
4
×
0.2
+
2
×
0.5
=
0.8
+
1.0
=
1.8
Total volume
=
4
+
2
=
6
L
∴
Molarity
=
6
1.8
=
0.3
M